fix typo in blocklist

Author: Wenn0101

tools/config/blocklist.json

@@ -12,20 +12,20 @@
         },
         "cxx": {
             "flags": [
-				"-Wvla"
-				"-Wall"
-				"-Wextra"
-				"-Wno-missing-field-initializers"
-				"-Wno-unused-parameter"
+                "-Wvla"
+                "-Wall"
+                "-Wextra"
+                "-Wno-missing-field-initializers"
+                "-Wno-unused-parameter"
             ]
-        }
-		"c": {
+        },
+        "c": {
             "flags": [
-				"-Wvla"
-				"-Wall"
-				"-Wextra"
-				"-Wno-missing-field-initializers"
-				"-Wno-unused-parameter"
+                "-Wvla"
+                "-Wall"
+                "-Wextra"
+                "-Wno-missing-field-initializers"
+                "-Wno-unused-parameter"
             ]
         }
     }